<!DOCTYPE html>
<html lang="en">
<head>
   <style>
    .font32{
        color:red;
        font-size: 32px;
        border: 1px solid aqua;
        width: 500px;
        height: 200px;
        margin: 10px;
    }
   </style>
</head>
<body>
   
    <div class="font32">我是⼀个div, class为font32</div>
    <div class="font32">我是⼀个div, class为font32</div>
    <div><a href="#">我是⼀个div</a></div>
    <ul>
    <li>aaa</li>
    <li>bbb</li>
    <li><a href="#">ccc</a></li>
    </ul>
    <ol>
    <li style="color:aqua">1111</li>
    <li>2222</li>
    <li>3333</li>
    </ol>
    <button id="submit">提交 </button>
</body>
</html>